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Finding the Fourth Proportional to 251,276.30, 376,951.77 and 82,765.52

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Solution

The fourth proportional to 251,276.30, 376,951.77 and 82,765.52 is: 124,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,276.30 : 376,951.77 = 82,765.52 : x
  2. Step 2: Convert to fraction form
    251,276.30/376,951.77 = 82,765.52/x
  3. Step 3: Cross multiply
    251,276.30x = 376,951.77 × 82,765.52
  4. Step 4: Simplify right side
    251,276.30x = 31,198,607,374.21
  5. Step 5: Solve for x
    x = 31,198,607,374.21/251,276.30
  6. Step 6: Final answer
    x = 124,160.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.